The dynamics of questing ticks collected for 164 consecutive months off the vegetation of two landscape zones in the Kruger National Park (1988–2002). Part III. The less commonly collected species

Gallivan, G. James; Heyne, Heloise; Spickett, Arthur M.; Horak, Ivan G.

doi:10.4102/ojvr.v79i1.41

Cited by 1 publication

(1 citation statement)

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“…The larvae, nymphs and adults of the three-host tick, R. appendiculatus , all quest for hosts from the vegetation, whilst only the larvae of the one-host R. decoloratus quest from the vegetation. Larvae of the two-host tick, R. evertsi evertsi, quest for hosts from the vegetation and the adults probably from the soil surface (Gallivan et al 2011 ; Horak, Gallivan & Spickett 2011 ; Spickett, Gallivan & Horak 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Questing ixodid ticks on the vegetation of sable antelope and multi-herbivore enclosures in Thabazimbi

Uys¹,

Horak²,

Harrison³

2015

J. S. Afr. Vet. Assoc.

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This survey of ixodid ticks was the first to compare the species composition and population dynamics of free-living ticks in intensive, sable antelope breeding enclosures, now commonplace in commercial wildlife ranching in South Africa, with those of multi-herbivore enclosures. The species composition, abundance and seasonal abundance of questing ixodid ticks on the vegetation in intensive breeding enclosures for sable antelope (Hippotragus niger), on which strategic tick control is practised, were compared with those of ticks in a multi-species herbivore enclosure surrounding the breeding enclosures in which no tick control is practised. A total of eight ixodid tick species were collected by drag-sampling the woodland and grassland habitats in each enclosure type monthly from July 2011 to July 2013. Rhipicephalus decoloratus, a potential vector of fatal tick-borne disease in sable antelopes, was the most abundant, accounting for 65.4% of the total number of ticks collected in the sable enclosures, whilst representing only 25.4% of number of ticks collected in the multi-species herbivore enclosure. Rhipicephalus decoloratus and R. evertsi evertsi were more abundant than R. appendiculatus (both p < 0.05) and Amblyomma hebraeum (p < 0.001 and p < 0.01, respectively). Rhipicephalus decoloratus larvae were collected throughout the year, with peak collections in November 2012 and October to December 2013 in the sable enclosures; and in April/May 2012 and February/April 2013 in the multi-species herbivore enclosure. More R. decoloratus were recovered in the second year than in the first year in the grassland habitat of the sable enclosures (V = 7.0, p < 0.05) possibly as a result of acaricide resistance. The apparent temporal over-abundance of R. decoloratus in sable antelope breeding enclosures, in the face of strategic tick control, is of concern and requires further investigation.

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Section: Introductionmentioning

confidence: 99%